为什么我们不只是使用Minified JS?

时间:2010-12-01 16:22:28

标签: javascript jquery minify

我看到这个词很多“缩小”,我似乎从来没有选择一个“缩小”的脚本(即来自jQuery插件),但我想我应该。如果我是正确的Minified意味着从源代码中删除所有不必要的东西而不改变它的功能,那么为什么我们不仅仅有缩小的来源以及为什么要烦扰完整的版本?为什么要给人们选择?

YOLO

9 个答案:

答案 0 :(得分:45)

当你进行调试时,拥有完整的源代码要容易得多。当它说所有内容都在第1行时(因为所有内容通常都缩写为一条长行),以及一条不可读的第1行就很难调试。

我使用完整的版本进行测试,然后我将所有内容缩小以进行部署。

答案 1 :(得分:9)

缩小版很难理解和调试

答案 2 :(得分:4)

答案很简单,不需要进一步解释恕我直言,来自jquery网站

  • 选择你的压缩等级:
  • JQUERY-1.4.4.MIN.JS PRODUCTION (26KB,缩小和Gzipped)
  • JQUERY-1.4.4.JS 开发(179KB,未压缩代码)

现在,相当自我解释:

  • PRODUCTION =即插即用玩;
  • 开发 =调试,修改,编码....
希望这有帮助!

答案 3 :(得分:1)

如果您想了解脚本的工作原理或扩展脚本,那么最好使用非缩小版本。

答案 4 :(得分:1)

人为难以阅读缩小的脚本,并且难以调试。对于像jQuery这样的Javascript库,能够在调试期间读取您正在使用的任何函数的源代码,以便更好地理解它是如何工作的。在生产环境中,您绝对应该使用缩小版本来加速数据传输。

答案 5 :(得分:1)

哦不! jQuery中有一个错误。你必须找到并修复它。

您使用了jQuery的缩小版本。

这是您的错误消息,您可能发生的唯一提示:

Uncaught SyntaxError: Unexpected token )                       page.html:1

你做你经常做的事,看看错误发生的那条线。

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玩得开心!

您使用了正常版本的jQuery。

这是您的错误消息:

Uncaught SyntaxError: Unexpected token )                       page.html:5994       

你做你经常做的事,看看错误发生的那条线。

5992    l = this.length;
5993
5994    if ( value === undefined && elem. ) {
5995        return elem.innerHTML;
5996    }
5997
5998    // See if we can take a shortcut and just use innerHTML
5999    if ( typeof value === "string" && !rnoInnerhtml.test( value ) && !wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {

更好,不是吗?

我知道,很晚才参加派对,但我有这么多乐趣:D

答案 6 :(得分:0)

我的猜测是,最初,编写JavaScript库的人将它们写成“完整版”,即内置注释和代码格式 - 因为如上所述,代码更容易以这种方式阅读。然而,编写JavaScript库的人也知道缩小版本将更轻量级且更友好。由于开发人员已经拥有“完整版”,为什么他/她不会提供缩小版本?

在这种情况下,提供“完整版”不需要任何额外的工作,因为它是原始版本。只要开发人员要提供缩小版本 - 他也可以提供用于制作缩小版本的完整版本。使用开源JS库,提供带有注释和代码格式的完整版本,使社区更容易弄清楚发生了什么。

那就是说我会建议你在生产环境中使用缩小版。优选地,通过CDN递送缩小版本。

答案 7 :(得分:0)

简单来说,缩小版本用于生产,非小型版本用于开发调试目的。

特别是对于性能而言,缩小版本更好。您可以通过firebug net panel检查加载时间之间的差异

答案 8 :(得分:0)

你可以使用PHP脚本动态缩小(并在需要时缓存/ gzip)你的js脚本。这是我大部分时间都在做的事情。

它具有缩小你的javascript而没有缺点的所有优点。 节省约70%(gzip + minify)传输的数据。